telegram api method · layer 229 · #2714d86c
account.checkUsername
Validates a username and checks availability.
definition
account.checkUsername#2714d86c username:string = Bool;
parameters
| name | type | description |
|---|---|---|
username | string | usernameAccepted characters: A-z (case-insensitive), 0-9 and underscores.Length: 5-32 characters. |
returns
errors (5)
| code | error | description |
|---|---|---|
| 400 | BUSINESS_CONNECTION_NOT_ALLOWED | This method was invoked over a business connection using invokeWithBusinessConnection, but either (1) we're a user, and users cannot invoke methods over a business connection; (2) we're a bot, but business mode was disabled in @botfather or (3); we're a bot, but this method cannot be invoked over a business connection. |
| 400 | USERNAME_INVALID | The provided username is not valid. |
| 400 | USERNAME_OCCUPIED | The provided username is already occupied. |
| 400 | USERNAME_PURCHASE_AVAILABLE | The specified username can be purchased on https://fragment.com. |
| 401 | AUTH_KEY_UNREGISTERED | The specified authorization key is not registered in the system (for example, a PFS temporary key has expired). |
history
present in layers 18–229
| id | layers |
|---|---|
| #2714d86c | 18–229 |